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Phyllodocidae
Phyllodocidae is a family of polychaete worms. Worms in this family live on the seabed and may burrow under the sediment. Characteristics Members of the Phyllodocidae are characterised by an eversible pharynx and leaf-like dorsal cirri. The head has a pair of antennae at the front, a pair of ventral palps and a single median antenna known as a "nuchal papilla". There is a pair of nuchal organs and there may or may not be a pair of eyes. The first two or three body segments may be part-fused and bear up to four pairs of tentacular cirri. The remaining body segments each bear leaf-like dorsal and ventral cirri, the dorsal ones being larger. The parapodia are uniramous or biramous, and chaetae are present on all but the first segment. Genera The World Register of Marine Species includes the following genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllodoce (worm)
''Phyllodoce'' is a genus of polychaete worms, which contains about 200 species. The prostomium bears eyes, two pairs of antennae and a pair of large retractile nuchal The nape is the back of the neck. In technical anatomical/medical terminology, the nape is also called the nucha (from the Medieval Latin rendering of the Arabic , "spinal marrow"). The corresponding adjective is ''nuchal'', as in the term ''n ... organs. The eversible proboscis is clearly divided into two parts. Species The World Register of Marine Species includes the following species in the genus : *'' Phyllodoce adarensis'' Benham, 1927 *'' Phyllodoce agassizi'' Nolte, 1938 *'' Phyllodoce albovittata'' Grube, 1860 *'' Phyllodoce algerensis'' Nolte, 1938 *'' Phyllodoce arenae'' Webster, 1879 *'' Phyllodoce armigera'' (Blake, 1988) *'' Phyllodoce australis'' Day, 1975 *'' Phyllodoce basalis'' (Hartmann-Schröder, 1965) *'' Phyllodoce benedenii'' (Hansen, 1882) *'' Phyllodoce berrisfordi'' (Hartmann-Sch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllodoce Lineata
''Phyllodoce lineata'' is a species of polychaete worm in the family Phyllodocidae. It is native to the northeastern Atlantic Ocean and the Mediterranean Sea where it occurs in the intertidal and shallow sub-tidal zones on soft sediment. Description This is a multi-segmented worm of variable length, a worm with 300 segments being about long. The prostomium is roughly pentagonal. Like other members of the genus, the prostomium bears two pairs of antennae, a pair of eyes and a pair of large, retractile, nuchal organs. The proboscis is eversible and is divided into two distinct parts. The proximal part of the proboscis bears about 25 longitudinal rows of tiny papillae, and the distal part bears 6 longitudinal rows of larger, knob-like protuberances, and a ring of papillae at the tip. The body is elongated and of even width, apart from a tapering tip. Long tentacle-like cirri are borne on the first 7 body segments, and fleshy paddle-like parapodia are borne on the remainder. The ey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eulalia (worm)
''Eulalia'' is a genus of polychaete worms. Species The World Register of Marine Species includes the following species in the genus : *'' Eulalia anoculata'' Hartman & Fauchald, 1971 *'' Eulalia artica'' Annenkova, 1946 *''Eulalia aurea'' Gravier, 1896 *'' Eulalia austrophylliformis'' Uschakov, 1972 *'' Eulalia bilineata'' (Johnston, 1840) *'' Eulalia brevicornis'' (Moore, 1894) *''Eulalia brunnea'' (Hartmann-Schröder, 1963) *''Eulalia clavigera'' (Audouin & Milne Edwards, 1833) *''Eulalia dubia'' Webster & Benedict, 1884 *''Eulalia ellipsis'' (Dalyell, 1853) *''Eulalia eos'' Michaelsen, 1897 *''Eulalia expusilla'' Pleijel, 1987 *''Eulalia gemina'' Kato & Mawatari, 2001 *''Eulalia gracilior'' (Chamberlin, 1919) *''Eulalia gravieri'' Uschakov, 1972 *''Eulalia hanssoni __NOTOC__ Eulalia is a feminine given name of Greek origin, ''Ευλαλια'', meaning "well-spoken." It may refer to: People * Saint Eulalia (other), the name of two venerated Spanish martyr sai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eumida
''Eumida'' is a genus of polychaetes belonging to the family Phyllodocidae. The genus has cosmopolitan distribution. Species: *''Eumida albopicta'' *''Eumida alkyone'' *'' Eumida alvini'' *'' Eumida angolensis'' *'' Eumida arctica'' *''Eumida asterope'' *'' Eumida bahusiensis'' *'' Eumida caspersi'' *'' Eumida delicata'' *'' Eumida dracodermica'' *'' Eumida elektra'' *'' Eumida fenwicki'' *'' Eumida fuscoculata'' *''Eumida hawksburyensis'' *'' Eumida kelaino'' *'' Eumida longicirrata'' *'' Eumida longicornuta'' *''Eumida mackiei'' *''Eumida macrophthalma'' *''Eumida maia'' *''Eumida merope'' *''Eumida minuta'' *''Eumida muriatica'' *''Eumida notata'' *''Eumida nuchala'' *''Eumida ockelmanni'' *''Eumida ophiuricola'' *'' Eumida parva'' *'' Eumida punctifera'' *''Eumida quadrocula'' *''Eumida sanguinea'' *'' Eumida schanderi'' *'' Eumida strigata'' *'' Eumida taygete'' *'' Eumida thunbergi'' *''Eumida trifasciata ''Eumida'' is a genus of polychae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polychaete
Polychaeta () is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin. More than 10,000 species are described in this class. Common representatives include the lugworm (''Arenicola marina'') and the sandworm or clam worm ''Alitta''. Polychaetes as a class are robust and widespread, with species that live in the coldest ocean temperatures of the abyssal plain, to forms which tolerate the extremely high temperatures near hydrothermal vents. Polychaetes occur throughout the Earth's oceans at all depths, from forms that live as plankton near the surface, to a 2- to 3-cm specimen (still unclassified) observed by the robot ocean probe ''Nereus'' at the bottom of the Challenger Deep, the deepest known spot in the Earth's oceans. Only 168 species (less than 2% of all polychaetes) are known from fresh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
